Is the room in the middle of the mobile home? Do you live on the side of a hill? I'd be more concerned that so much water and rock on one side would actually roll the trailer over.
Found a couple of photos of some other tanks I installed but I am new here and dont want to hijack this thread. Is it a real thread? It seems to have gone waaay off topic already. Anyway I will post some photos in next few days (I still have to sort) and post them up here or perhaps link to them from here.
BTW I have seen mobile aquariums.... Fishing companies show off their lures with real fish in the tank. Here is a link to something similar:
I am still getting around to sorting and uploading some tank photos sorry. Life has been busy. I did see a great 98,000L tank which used shipping containers.
This tank a lot more fancy and decorated than what I was suggesting. Its a good read. See the MEGA Tank section ....